C₇F₅N (Pentafluorobenzonitrile)

Liquids

1 dataset, together covering 0.4–2 µm. Default: Chang et al. 2024: n 0.4–2.0 µm.

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Datasets

Chang et al. 2024: n 0.4–2.0 µm n 0.4–2 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# C7F5N (Pentafluorobenzonitrile): Chang et al. 2024: n 0.4–2.0 µm
c7f5n = ls.fetch_refractiveindex("organic", "pentafluorobenzonitrile", "Chang", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c7f5n.range_nm)  # (400, 2000) nm
eps = c7f5n.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_ba9669013b6c/lightsmith"
c7f5n = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c7f5n.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pentafluorobenzonitrile/chang-2024).

# ... load c7f5n as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c7f5n)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_ba9669013b6c/lightsmith?model=drude_lorentz"
c7f5n_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About C7F5N (Pentafluorobenzonitrile)

Pentafluorobenzonitrile (C₆F₅CN) is a specialized chemical compound characterized by a benzene ring where five hydrogen atoms are replaced by fluorine atoms, with a nitrile group (-CN) attached. It appears as a colorless, crystalline solid with a distinctive, sharp odor. This compound is primarily used in the synthesis of various pharmaceuticals, agrochemicals, and materials due to its unique reactivity and the ability to introduce fluorine into other molecules. Pentafluorobenzonitrile is also valued for its applications in liquid crystal and fluoropolymer production. Optically, the strong electron-withdrawing effects of the fluorine atoms and the nitrile group can impart useful refractive properties to materials incorporating this compound. Handling pentafluorobenzonitrile requires precautions due to its potential toxicity and environmental impact.

Other names: C7F5N, C₇F₅N

API: /v1/materials/mat_47a34c749d34 · slug pentafluorobenzonitrile